Done that for both questions. Now unsure about how to find the two coordinates. For 16 C, I understand that the equation will essentialy be X=constant, and therefore Dy/DX should be infinity, but the answer says I'm wrong so I don't know what to do. I understand that the formula is similar to that of a circle. This is where I've made a mistake:
Yep, just could not follow his method at all for (c) - laptop crashed so thanks for picking this up
For C I was using simultaneous equations to find a common X and y value for both equations, considering that I thought the numerator and denominator were equal to 0. I have learnt how to do it now, thanks to commenter.
For C I was using simultaneous equations to find a common X and y value for both equations, considering that I thought the numerator and denominator were equal to 0. I have learnt how to do it now, thanks to commenter.
Please work on your presentation - see my comments. Has your teacher not said the same to you?
That is foolish - it won't be there in the exam! It's better to struggle and work it through yourself.
If you cant work it out yourself, dont ask other people thats even more stupid. If you check out the solutionbank you have to learn how it works and understand it, hence gaining greater knowledge rather than getting the answers fed to you. Because they dont tell you why they did something, just shows the working out and you have to figure out why it was done.
If you cant work it out yourself, dont ask other people thats even more stupid. If you check out the solutionbank you have to learn how it works and understand it, hence gaining greater knowledge rather than getting the answers fed to you. Because they dont tell you why they did something, just shows the working out and you have to figure out why it was done.
They never tell you the answer here, they will only give a hint or guide me. I've learnt from the replies that to find an infinite gradient (x=constant), I should only equate the denominator to 0, not the numerator. Makes sense, as any number divided by 0 is theoretically infinite.